Damage mechanic broke with the lastest build dev

skill yml:

AtaqueDeEspadaCorta: Skills:

• damage{amount=12} @trigger

item yml:

EspadaAprendiz: Id: iron_sword Display: "&f&lEspada de Aprendiz" Model: 10000 Hide:

• ATTRIBUTES Options: Unbreakable: true
  Attributes: MainHand: Damage: 0 Skills:
• skill{s=AtaqueDeEspadaCorta} ~onAttack

this is just making 0 of damage, before the lastest build was working fine so something get wrong on all atack mechanic also the damage modifiers are totally broken on lastest build dev